d and f BLOCK ELEMENTS

What is the ground state electronic configuration of Holmium (Ho, Z=67)?

• [Xe] 4f¹⁰ 6s²
• [Xe] 4f¹¹ 6s²
• [Xe] 4f¹² 6s²
• [Xe] 4f¹¹ 5d¹ 6s¹

What is the ground state electronic configuration of Dysprosium (Dy, Z=66)?

• [Xe] 4f⁹ 6s²
• [Xe] 4f¹⁰ 6s²
• [Xe] 4f¹¹ 6s²
• [Xe] 4f¹⁰ 5d¹ 6s¹

What is the ground state electronic configuration of Samarium (Sm, Z=62)?

• [Xe] 4f⁵ 6s²
• [Xe] 4f⁶ 6s²
• [Xe] 4f⁷ 6s²
• [Xe] 4f⁶ 5d¹ 6s¹

What is the ground state electronic configuration of Promethium (Pm, Z=61)?

• [Xe] 4f⁴ 6s²
• [Xe] 4f⁵ 6s²
• [Xe] 4f⁶ 6s²
• [Xe] 4f⁵ 5d¹ 6s¹

Which lanthanoid is characterized by having the electronic configuration [Xe] 4f¹⁴ 5d¹ 6s²?

• Ytterbium (Yb)
• Lutetium (Lu)
• Yttrium (Y)
• Lanthanum (La)